KoolComboBox supports rich client-side event handling. With the use of registerEvent() , you can bind your function to an event.
You may have a look at our code section and documentation for more details.
*Note: Returning false in "OnBefore..." handle function will result in cancelling user action.
<?php
require $KoolControlsFolder."/KoolComboBox/koolcombobox.php";
$kcb = new KoolComboBox("kcb");
$kcb->scriptFolder = $KoolControlsFolder."/KoolComboBox";
$kcb->addItem("Asia","asia",null,true);//Init with Asia selected.
$kcb->addItem("Europe","europe");
$kcb->addItem("Africa","afica");
$kcb->addItem("America","america");
$kcb->addItem("Australia","australia");
$kcb->width = "160px";
$kcb->styleFolder="inox";
?>
<form id="form1" method="post">
<style type="text/css">
.box
{
float:left;
width:280px;
height:180px;
margin:10px;
padding:10px;
}
.focus
{
background:#DFF3FF;
border:solid 1px #C6E1F2;
}
.clear
{
clear:both;
}
#eventlog
{
overflow:auto;
overflow-x:hidden;
height : 150px;
width : 280px;
}
</style>
<div class="box">
Select your region:
<?php echo $kcb->Render();?>
</div>
<div class="box focus">
<b>Client-side events: </b><hr/>
<div id="eventlog"></div>
</div>
<div class="clear"></div>
<script type="text/javascript">
kcb.registerEvent("OnBeforeSelect",function(sender,arg){
var _item_data = arg.Item.getData();
if(confirm("Select item '"+_item_data["text"]+"' ?"))
{
writelog("<b>OnBeforeSelect</b>: Approve selection.");
return true; //Approve selection
}
else
{
writelog("<b>OnBeforeSelect</b>: Cancel selection.");
return false;//Cancel selection
}
});
kcb.registerEvent("OnSelect",function(sender,arg){
var _item = arg.Item;
writelog("<b>OnSelect</b>: '"+_item.getData()["text"] + "' was selected.");
});
kcb.registerEvent("OnOpen",function(sender,arg){
var _item = arg.Item;
writelog("<b>OnOpen</b>: ComboBox was opened. ");
});
kcb.registerEvent("OnClose",function(sender,arg){
var _item = arg.Item;
writelog("<b>OnClose</b>: ComboBox was closed. ");
});
function writelog(_text)
{
var _eventlog = document.getElementById("eventlog");
_eventlog.innerHTML +="<div style='white-space:nowrap;'>"+_text+"</div>";
_eventlog.scrollTop = 9999;
}
</script>
</form>
KoolComboBox - Advanced PHP ComboBoxTrialVersion 1.5.0.3 released on 1/15/2010